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Finding the Fourth Proportional to 270.48, 404.12 and 224.31

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Solution

The fourth proportional to 270.48, 404.12 and 224.31 is: 335.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.48 : 404.12 = 224.31 : x
  2. Step 2: Convert to fraction form
    270.48/404.12 = 224.31/x
  3. Step 3: Cross multiply
    270.48x = 404.12 × 224.31
  4. Step 4: Simplify right side
    270.48x = 90,647.04
  5. Step 5: Solve for x
    x = 90,647.04/270.48
  6. Step 6: Final answer
    x = 335.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.